aboutsummaryrefslogtreecommitdiff
path: root/kernel/sched/fair.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/sched/fair.c')
-rw-r--r--kernel/sched/fair.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f6e1f25ed2b..7727b016157 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -788,6 +788,9 @@ unsigned int sysctl_numa_balancing_scan_period_max = 100*16;
/* Portion of address space to scan in MB */
unsigned int sysctl_numa_balancing_scan_size = 256;
+/* Scan @scan_size MB every @scan_period after an initial @scan_delay in ms */
+unsigned int sysctl_numa_balancing_scan_delay = 1000;
+
static void task_numa_placement(struct task_struct *p)
{
int seq = ACCESS_ONCE(p->mm->numa_scan_seq);
@@ -929,6 +932,8 @@ void task_tick_numa(struct rq *rq, struct task_struct *curr)
period = (u64)curr->numa_scan_period * NSEC_PER_MSEC;
if (now - curr->node_stamp > period) {
+ if (!curr->node_stamp)
+ curr->numa_scan_period = sysctl_numa_balancing_scan_period_min;
curr->node_stamp = now;
if (!time_before(jiffies, curr->mm->numa_next_scan)) {